![\"\"](\"http:\/\/www.oktcz.com\/wp-content\/uploads\/2023\/12\/02-9.jpg\")
<\/figure>\n\n\n\n- Micro-step liner hanger
The hanger is designed to suspend the liner string from the liner seat step in the upper casing by a micro-step. The tool is divided into two types: impact type and non-impact type. Micro-step liner hanger hangs the liner from the upper casing by the liner seat and micro-step of the liner hanger. This liner hanger has a 100% success rate. Compared with other liner hangers, it has the following features:
1, reliable performance, large suspension force;
2, simple structure, light weight, cheap price;<\/li> - The cement height on the outer return of the liner can be controlled by using the pressurization liner hanger to ensure the cementing quality;
4, the outer annulus water area is large, the construction pump pressure is low, can avoid plugging and leakage phenomenon;
5, easy to operate.<\/li> - Float valve connector
Floating valve joint is one of the necessary tools for oil drilling. The float valve joint is connected to the upper part of the bit, and the float valve assembly in the joint is close to the bit connection thread, and can also be connected to the drill string where it is needed. Its main function is to prevent the mud from bringing drilling cuttings and mud back when connecting a single root, blocking the drill hole; When blowout or kick occurs, the valve cover of the floating valve assembly automatically closes the water hole to prevent blowout accidents in the pipe string.<\/li> - Super jar
The Super jar is an advanced fishing jar tool introduced in the 1980s. The tool applied hydraulic and mechanical principles, the use of advanced technology, concentrated the advantages of all kinds of fishing percussion tools, its compact structure, stable performance, easy to adjust (its percussion force can be freely adjusted by the size of the lifting force), easy to use, safe and reliable. It is a new type of upward jolting tool in petroleum and geological exploration drilling engineering.<\/li> - Liner hanger
Hydraulic liner hanger is a cementing tool that can suspend liner through hydraulically driven slip in cementing process, which is reliable, saves casing and has remarkable economic benefit. The main parts of the hanger body are the tie-back cylinder, the reverse buckle joint, the sealing sleeve, the 7 “sub, the cone, the slip, the fixed ring, the long push rod, the short push rod, the spring, the shear pin I, the ring piston and the cylinder body. The main accessories of the hanger are ball seat sub, hollow rubber plug and 5 “drill pipe rubber plug.
Main features:
1, the use of hydraulic drive slip suspension, no friction loss when downhole, reliable seat slip;
2, add floating screw sleeve, spline shaft, marble disc and spring, etc.; It is easy to find the neutral point when reversing, and it is easier to buckle.
3, add a tieback tube, if necessary, can be tieback casing;
4, the use of double row slips, increase the suspension capacity and circulation area;
5, the center pipe is sealed by sealing sleeve, simple and reliable. Specifications and dimensions<\/li> - Float shoe float hoop (250 Liqui-Lok)
Float shoe, float hoop is a casing guide shoe or coupling that can generate buoyancy. Due to the high temperature resistance of the float shoe or float hoop (252 Liqui-Lok), good sealing and drillability, convenient connection, it can replace the guide shoe, casing shoe, etc. Float shoes or float hoops can be used not only for general technical casing and reservoir casing, but also for deep Wells, ultra-deep Wells and special process Wells.
The float shoe is attached to the end of the casing string instead of the guide shoe. It acts as a guide shoe and a pressure back. The floating collar is connected 20 ~ 30 meters away from the end of the casing string. It acts as a support ring and a return pressure vane. The floating shoe mainly consists of a floating shoe body, a cement guide shoe, a ball and a tee.
The internal structure of the floating hoop is basically the same as that of the floating shoe. Only the upper and lower ends of the floating hoop are API casing threads.<\/li> - Open hammer
Open hammer (also known as mechanical hammer) is a commonly used hammer tool in drilling and fishing operations. It is with the weight and elastic expansion of the drill tool to produce a strong down force and a certain up force, it can also be used as a constant pressure feed tool, with the pipe cutter and so on. The hammer can carry out strong downhole striking, continuous downhole striking, and up-striking work in the well. Do not turn the drill during jar operation. Before the jolting operation, the lifting truck, lifting ring, hook, etc. should be locked and fastened, and the cover of the well head and crane should be covered to prevent the fall of objects in the well and the jump of the rope.<\/li> - Closed hammer
The moving part of the closed hammer is completely immersed in the closed oil chamber, so it is also called the oil bath hammer. The tool is suitable for fishing operations in deep and medium Wells. The closed type hammer has the advantages of reasonable structure, reliable sealing, excellent performance, easy operation and use, simple maintenance, etc. When the closed hammer is used alone, the structure and operation method of the drill tool are the same as that of the open hammer.<\/li> - Input check valve
The drop check valve is a BOP in the drill string. The tool is simple in structure and easy to operate. As long as the joint thread of the kelly pipe is removed, it can be put into the water hole of the drill pipe, and the purpose of internal blowout prevention can be achieved after being in place.<\/li> - Mechanical jar while drilling
The mechanical jar while drilling is a new integrated jar while drilling, which is an important tool to solve the stuck drilling accident. In the event of a stuck hole, the tool can provide continuous up or down strokes at any time to quickly release the stuck. The mechanical jar while drilling is an integral structure, using the principle of mechanical friction, the jarring force is not affected by the temperature in the well, the upper and lower jarring force can be adjusted separately on the ground (after running the well can not be adjusted again), and it is convenient to install and disassemble, not easy to wear, safe and reliable, long service life, is an ideal tool for drilling straight Wells, directional Wells, complex Wells and other Wells.<\/li> - Spring type casing scraper
The casing scraper is used to remove cement blocks, cement rings, hard wax, various salt crystals or sediments, perforation burrs and iron oxide produced after casing rust on the inner wall of the casing, so as to smooth access to various downhole tools. Especially when the downhole tool and casing inner diameter annular space is small, it should be fully scraped after the next step. At present, scraping the inner wall of casing has become an indispensable process in the major oil fields in China.
The spring type casing scraper is mainly composed of body, cutter plate, fixing block, pressing block and other parts.<\/li> - Jar while drilling
The jar while drilling is one of the drilling tools connected to the drilling tool. When the drilling accident occurs in the well, the tool can provide continuous up or down stroke at any time, so that it can be quickly unstuck. It is an ideal tool for drilling deep Wells and directional Wells. The jar while drilling is composed of an upper part and a lower part. The upper part adopts the hydraulic principle, and its jarring force can be freely adjusted by the size of the upper lifting force, but it is not allowed to exceed the maximum load of the tool limit when used; The striking part adopts the principle of mechanical friction, and the jarring force is adjusted in advance on the ground through the adjusting mechanism, which can not be adjusted again in the well.<\/li> - Hydraulic upward hammer
The hydraulic upward hammer is a tool that makes the drilling tool produce elastic deformation by using the principle of fluid mechanics. When the elastic potential energy is released, the upward jarring force is generated to release the stuck of the bottom drilling tool. The hydraulic upward hammer is composed of a jar rod, a scraper, a disc, an upward cylinder liner, a middle cylinder liner, a guide rod, a piston, and a lower joint.<\/li> - Kelly cock valve
Kelly cock valve is a manual control valve in the drill string circulation system, which can be used as a high-pressure seal. Kelly cock valves are divided into upper kelly cock valves and lower kelly cock valves. The upper kelly cock valve is left-hand connected; The lower kelly cock valve is right-handed. The upper kelly cock valve is connected between the lower end of the faucet and the upper end of the kelly. The lower kelly cock valve is connected between the lower end of the kelly and the upper end of the drill pipe or the drill pipe protection joint.<\/li> - Cone catcher
Cone catcher is a tool used to catch bits and other falling objects that fall into the well during drilling and workover operations. This kind of tool is suitable for fishing and coring in hard strata and has the characteristics of strong grinding force.<\/li> - Kelly backer
The kelly back-off device is an ideal tool to transfer reverse torque on the kelly to deal with the stuck accident in the drilling process. Its advantages: the first treatment of the accident can save the kelly reversing procedure, saving time and labor, economy; The second structure is simple, light weight, easy to use, general loading and unloading only 30 minutes.
Model: 85\/8 “X51\/2”
Maximum torque: 80KN.m
Tensile force: 3500KN
Connector top buckle: 520
Bottom buckle: 411(back buckle)
Model: Maximum torque; Tensile strength; Joint upper buckle; Joint lower buckle, etc.<\/li> - Collapsible spear
Collapsible fishing spear is a kind of fishing tool for fishing drill pipe (236), tubing, casing and cylindrical hollow objects in the process of drilling and workover in oil and gas fields. It can be used with internal cutters, jars and other tools. If the fish can not be lifted by the card, the spear can be pulled out of the drill.<\/li> - Collapsible slip socket
The collapsible slip fishing barrel is a special fishing tool used for fishing the drill collar, drill pipe, oil pipe and other fish from outside in the process of drilling and workover. When the fish is caught and cannot be taken out, the product can be withdrawn from the fish and lifted back to the ground.<\/li> - Returnable reverse bucket
The retractable backdown dredge is a fishing tool which integrates the advantages of various dredge and female cone. Objective existence can be used not only for fishing, reverse, but also for releasing fish, but also for washing fluid circulation. In the fishing operation, the back-off bucket is one of the important supporting tools of the back-off device.<\/li> - Arrow back pressure valve
Arrow return pressure valve is an important blowout prevention tool in drill pipe. The back pressure valve is composed of a body, a cap, a packing box, a sealing arrow, a support seat, etc. This form of back pressure valve uses a needle shaped valve needle, so it is less eroded by drilling fluid. The gasket is made of corrosion-resistant nylon material, so it can be used for a long time.<\/li> - Safety connector
H type safety connector and AJ type safety connector. These two safety joints are special joints that play a role in protecting drill string in drilling, workover, oil (gas) testing and other projects. It is suitable for downhole accident management, as well as intermediate testing for drilling and coring. When dealing with downhole accidents, it is connected to the required part of the drill string used. Once the tool is stuck in the hole, the drill string above the stuck point can be removed with the help of the safety joint, and the drill string can be buttoned when drilling again.<\/li> - Butt connector
The butt joint is a special joint used when fishing for fallen fish. The buckle joint is divided into two kinds without an external guide shoe and with an external guide shoe. The joint is characterized by milling out a convex lead at the end of the male buckle, which is easy to enter the fish top female buckle when the buckle is very convenient.<\/li> - Anti-drop milling fishing tool
The anti-drop milling tool is a tool used to perform the milling operation when the bit is not stuck in the bottom hole, which can avoid falling fish to the bottom of the hole. Once unstuck and dropped during the milling process, the tool can hang the fish in the milling tube, and the fish can be lifted out with the milling tube during drilling. The use of the anti-drop milling tool with the H-type safety joint can solve the problem that the drilling needs to be lifted before the fish is unstuck during the milling process. Fishing sleeve milling tool, regardless of whether the drill bit is at the bottom of the hole, after the occurrence of stuck drilling, if the stuck drill tool is longer, can not be once milling, that is, the fishing sleeve milling tool can be segmented. Then the milling tool and drilling tool together, that is, one trip can complete the milling and fishing two tasks at the same time.<\/li> - Shaped joints
The special-shaped joint is a kind of conversion joint connecting the drill pipe and the milling pipe. The drill pipe joint thread at the upper end of the shaped joint is connected to the drill pipe. The double-stage thread of the milling pipe outside the lower end is connected with the milling pipe; The drill pipe joint inside the lower end is threaded to the fishing joint.<\/li> - Casing pressure test plug
Casing pressure test plug is a special tool for casing pressure test. On the one hand, it can be used to test the pressure of single casing on the surface, and on the other hand, it can test the pressure of casing string in the underground. At the same time, it can also perform a one-time stratified pressure test on the casing and the blowout preventer where the wellhead equipment is installed.<\/li> - Tube milling
Milling tube is one of the main tools to deal with stuck drilling accidents by milling. The two-stage synchronous thread no-collar sleeve milling pipe has the characteristics of high strength, fast up-and-down and large torque. Because there is no internal and external collar, the sleeve milling size of the sleeve milling pipe is wider than that of the sleeve milling pipe with the collar. At the same time, it has no internal shoulder to be used with tools such as the anti-drop sleeve milling spear, which improves the fishing efficiency.<\/li> - Jar Accelerator
The jar accelerator, also known as the hydraulic accelerator, must be used with a variety of upper hammer. It is connected to the upper hammer, and it accelerates during operation to enhance the jarring force against the stuck point, and also reduces the rebound vibration of the upper drill tool and equipment. The mandrel of the hydraulic accelerator is filled with methyl silicone oil with a high compression index between the mandrel and the liner. The abrasive spline of the mandrel is matched with the spline at the lower end of the upper cylinder liner, and torque can be transmitted either in a compressed or free state.<\/li> - Ground jar
The surface jar is an effective tool to relieve the stuck drilling accident in the well. It is connected to the surface part of the drill string. The mechanism for adjusting the tonnage is exposed to the turntable, and the strong striking force can be clearly seen when the surface jar is operated. The strength of the jolt force of the ground jar can be adjusted by a simple method. It is a kind of unstuck tool with convenient operation, clever design and continuous downstroke.<\/li> - Short drill collar
Short drill collar is one of the commonly used drilling tools in oil drilling engineering, which plays the role of increasing weight on bit, preventing deviation and avoiding drilling tool breaking. It has the characteristics of wall thickness, weight per unit length and high rigidity.<\/li> - Sliding sleeve keyway expander
Sliding sleeve keyway expander is the main tool to damage keyway and prevent keyway sticking. The sliding sleeve keyway expander is composed of a mandrel and a sliding sleeve. The sliding sleeve can move up and down and rotate on the mandrel. Surfacing three groups of three spiral carbide edges on the sliding sleeve. The upper end of the sliding sleeve has a pair of serrated inserts, which match the serrated inserts at the lower end of the upper joint. When the slide sleeve is stuck in the keyway, the downward jarring effect can be generated when the pressure is turned forward to release the slide sleeve. A pair of rectangular inserts at the lower part of the slide sleeve are matched with the inserts at the upper end of the lower joint, and the keyway can be damaged by applying a certain tension to backrow the eye.<\/li> - Drill lifting nipple
Drilling tool lifting nipple is a special tool for lifting drilling tools in oil, natural gas and geological exploration drilling engineering. The integral structure of the drill pipe lifting nipple. The integral structure of the drilling tool lifting sub has high bearing capacity, safety and reliability, and can meet the drilling needs of more than 4000 meters deep Wells.<\/li> - Hydraulic shock absorber
Hydraulic shock absorber is a kind of shock absorber which plays the role of longitudinal shock absorber when drilling with cone bit or abrasive core bit. Under the action of external pressure, the fluid of the cylinder is damped and compressible to realize shock absorption and shock absorption, so the best coordination of bit weight and rotational speed can be achieved in the comprehensive drilling and coring operation, so as to improve the drilling rate and core harvest rate, reduce drilling costs and improve drilling efficiency.<\/li> - Adapter
Converters are used to transfer and connect drill string components in oil, gas and geological drilling operations.<\/li> - Fixed Angle bent joint
The fixed Angle bending joint is one of the main tools for skewing dynamic drilling tools. The Angle at which the center line of the lower end of the bend deviates from the drill string axis is fixed. The dynamic drilling tool gives continuous lateral force to the bit under the action of the bent joint, so that the bit can continuously cut the side wall and drill a curved well track.<\/li> - Mechanical external cutter
Mechanical external cutter is a special tool for cutting various types of drill pipe and oil pipe from outside to inside. Due to the use of spring automatic feed. Thus can avoid due to negligence caused by excessive tension damage blade failure. The product is used at the bottom end of the casing mill string.<\/li> - Mechanical internal cutter
The mechanical internal cutter is a special downhole tool for cutting casing, tubing and drill pipe from the inside out of the string. Can be used in combination with fishing spear, the cut pipe string with the cutter once fishing out of the well. When used in inclined well, in order to make the cutter work stably, a spring movable centralizer can be added between the cutter and the drill collar. (2023-12-17)<\/li><\/ol>\n\n\n\n![\"\"](\"http:\/\/www.oktcz.com\/wp-content\/uploads\/2023\/12\/01-15.jpg\")
<\/figure>\n","protected":false},"excerpt":{"rendered":"Micro-step liner hangerThe hanger is designed to suspend the liner string from the liner seat step in the upper casing by a micro-step. The tool is divided into two types: impact type and non-impact type. Micro-step liner hanger hangs the liner from the upper casing by the liner seat and micro-step of the liner hanger. …<\/p>\n