CN111946277A - Well control logging cable hanger, tool assembly thereof and use method - Google Patents
Well control logging cable hanger, tool assembly thereof and use method Download PDFInfo
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- CN111946277A CN111946277A CN202010989686.7A CN202010989686A CN111946277A CN 111946277 A CN111946277 A CN 111946277A CN 202010989686 A CN202010989686 A CN 202010989686A CN 111946277 A CN111946277 A CN 111946277A
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- well
- main body
- logging cable
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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- Earth Drilling (AREA)
Abstract
A well control logging cable hanger and its tool assembly and method of use, the well control logging cable hanger includes well head chuck, hangs the main part, runs from opposite directions slips and slips press the cover, and double female joint, elastic thread ring and run from opposite directions the stop ring, its matched tool assembly is made up of knockout pin and pressure cap, wherein, run from opposite directions the stop ring corresponds to said elastic thread ring structure each other, can cooperate to make up along the axial elastic clamping cooperation structure, use the well control logging cable hanger can direct hanging the logging cable fast, still can make the fast clamping between oil well drilling rod and the hanging main part, both can save the tedious time of the logging instrument of starting up, also can improve the connection speed of the oil well drilling rod and the main part, has shortened the well head processing time of the emergent emergency in the logging process effectively, improve the risk corresponding speed and risk processing ability in the logging process, reduce the risk hidden danger that may exist and economic loss that may cause, more reliable guarantee is provided for the oil field safety production.
Description
Technical Field
The invention relates to a cable hanger and a tool assembly thereof, in particular to a well control logging cable hanger and a tool assembly thereof.
Background
In the oil field well drilling production, all uncased new open hole wells usually need to be subjected to well logging operation, various information in a reservoir or a production layer is measured along a shaft, and relevant data is provided for each stage of exploration and development of an oil and gas reservoir. However, because there is no pipe column such as drilling tool under the open hole well, the annular space around the logging cable is very large, when there is accident such as well kick or overflow of dangerous gas, the BOP blowout system arranged at the well head can not start, and because the logging cable is arranged in the well bore, the crown block is hung on the hook of the derrick traveling block, the space occupation of the inner part of the well bore and the upper part of the well head can not be implemented, so that the drilling and sealing measures of drilling the drill pipe and the drilling tool and the filling and heavy mud well killing measures can not be implemented, the existing production can only adopt the fast pulling out of the logging instrument, fast take over the pipe column to lower the well, then implement the measures such as circulation, well killing or well head closing, obviously, the processing measure has high intensity, long time consumption, can not meet the requirements of fast response and fast processing of the risk accident, has great accident risk and potential safety hazard, and avoids the risk, the risk accident disposal device matched with the open hole well and the logging facility thereof needs to be researched and developed, so that the accident situations such as possible well kick, dangerous gas overflow and the like can be quickly, efficiently, safely and reliably disposed, and the safety production of the oil field is guaranteed.
Disclosure of Invention
The invention aims to provide a logging cable hanger for well mouth safety control and a disassembling tool assembly thereof, which are matched with an open hole well and a logging facility thereof and provide quick and efficient safety guarantee for oil field production.
A well-controlled wireline hanger, comprising: the well head chuck, hang the main part, run from opposite directions slips and slips pressure sleeve, the well head chuck is the dull and stereotyped body, can cover the oil well head with the supporting whole of oil well head square tile, has seted up the circular port in the quotation, has still seted up chuck cable lead-in groove simultaneously, hang the upper end of main part and seted up the internal thread, the lower part has the reducing region and forms the reducing circular bead, and inside has the toper cavity, has seted up on the lateral wall and has link up the axial, communicate the main part cable lead-in groove of toper cavity, the diameter in reducing region forms mutually supporting with the circular port of seting up in the well head chuck quotation, make the reducing circular bead can support on the quotation of well head chuck, run from opposite directions slips comprises two symmetrical lamella bodies, two the lamella body combination forms a complete cone, the tapering and the size of cone and the interior toper cavity of seting up of, the slips press sleeve is installed in a threaded connection mode, the upper end of the conical cavity in the hanging body can be rotated to abut against the split slips, and the split slips are enabled to be attached to the valve body more tightly.
In order to prevent the two valve bodies forming the split slip from being relatively dislocated and reduce the clamping effect of the split slip on the logging cable, a connecting positioning pin is preferably arranged between the two valve bodies forming the split slip, and the two valve bodies are relatively limited in the axial direction.
Preferably, the butt joint surfaces of the two petal bodies are correspondingly provided with a logging cable embedding arc groove, so that the two petal bodies form a circular logging cable embedding circular hole after being combined, and the clamping capacity of the logging cable is improved.
The well control logging cable hanger further comprises: and meanwhile, a second moving rod mounting hole for mounting the second moving rod is formed in the outer side surface of the hanging main body, and the hanging main body can be conveniently moved and carried by using the second moving rod.
The well control logging cable hanger further comprises: the double-female joint comprises a double-female joint, an elastic threaded ring and a split retaining ring, wherein the upper end and the lower end of the double-female joint are respectively provided with an internal thread, the side wall of the double-female joint is provided with a well fluid circulation channel communicated with the inside and the outside, the upper end of the double-female joint is used for being connected with an oil field drill rod, the lower end of the double-female joint is in threaded connection with the split retaining ring, the upper end of the hanging main body is also provided with an external thread, the elastic threaded ring is integrally an annular cylinder body, the side wall of the elastic threaded ring is uniformly distributed with a ring body cable guide groove and a plurality of elastic grooves which are axially communicated, the lower end of the elastic threaded ring is provided with an internal thread, the upper end of the elastic threaded ring is provided with an outward protruding clamping ring, the elastic threaded ring is in threaded connection with the upper end of the hanging main body, a certain elastic deformation, can be matched to form an elastic clamping matching structure along the axial direction.
In order to ensure the disassembly manufacturability of the well control logging cable hanger, preferably, a fastening screw hole is formed in the elastic threaded ring, the fastening screw hole is matched with a fastening screw to fasten the elastic threaded ring in threaded connection with the hanging main body on the hanging main body, and the elastic threaded ring is limited to rotate relative to the hanging main body in a working state.
The well control logging cable hanger further comprises: the first moving rod is arranged, meanwhile, a first moving rod mounting hole used for mounting the first moving rod is formed in the outer side face of the double female joint, and the double female joint can be conveniently moved and carried by the aid of the first moving rod.
A well control logging cable hanger tool assembly is used for disassembling split slips and comprises a push rod and a pressing cap, wherein the push rod and the push cap are of a cylindrical structure integrally, a push rod cable leading-in groove and a push cap cable leading-in groove are formed in the side wall of the push rod and the side wall of the push cap respectively, and external threads are arranged on the push cap.
Simultaneously, with run from opposite directions slips extracting tool subassembly cooperatees, a well control logging cable hanger is preferred hang the toper cavity lower part of main part and set up the cylinder inner chamber of certain length, and the internal thread is seted up to the lower extreme end, when dismantling run from opposite directions slips, can with the ejector pin is arranged in the cylinder inner chamber, and will press cap threaded connection to install hang the lower extreme of main part, through the precession of pressing the cap, support the ejector pin and go upward, can with run from the toper inner chamber upper end separation of hanging the main part is released.
The method for quickly suspending the cable and connecting the drill pipe by using the well control logging cable hanger comprises the following steps:
step 1, a logging cable is guided into a circular hole formed in a disc surface through a chuck cable guide groove formed in a wellhead chuck 1, the wellhead chuck is placed on an oil well wellhead square tile, and the oil well wellhead is covered integrally;
and 5, lifting the oil well drill rod until the suspension body is separated from the wellhead chuck, quickly removing the wellhead chuck, sending the oil well drill rod downwards into an oil well, and injecting circulating mud through the oil well drill rod to perform well killing treatment.
The invention has the advantages that the well control logging cable hanger can be used for directly controlling and hanging the logging cable on the wellhead of an oil well in time and reliably when accidents such as well kick or leakage of dangerous gas occur suddenly in the logging process, preparation is made for well sealing operation, the double female connectors and the axial clamping structures between the double female connectors and the hanging main bodies are further introduced, the well control logging cable hanger and the drill rod of the oil well can be quickly connected in a clamping mode, the lengthy time of a logging instrument in the prior art can be saved, the connection efficiency of the drill rod of the oil well and the well control logging cable hanger can be improved, the handling time of the wellhead in sudden and urgent situations in the logging process can be effectively shortened, the precious time for the downhole well sealing operation can be obtained, the risk response speed and the risk handling capacity can be improved, and the possible risks and possible economic losses can be reduced, more reliable guarantee is provided for the oil field safety production.
Drawings
FIG. 1 is an exploded view of a wireline hanger with a quick connection for a drilling tool.
FIG. 2 is a schematic diagram of a well control logging cable hanger assembly with a drilling tool quick connect mechanism.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a sectional view taken along line B-B of fig. 2.
FIG. 5 is a top view of the wellhead chuck.
Fig. 6 is a front view of the elastic threaded ring.
FIG. 7 is a cross-sectional view of the stem lifter.
Fig. 8 is a schematic view of a press cap structure.
Detailed Description
The claimed solution is further described below with reference to the preferred embodiments and the accompanying drawings.
A well control logging cable hanger with a drilling tool quick connection mechanism is shown in figures 1 and 2 and comprises a wellhead chuck 1, a hanging body 2, split slips 3, a slip pressing sleeve 4, a double female joint 5, an elastic threaded ring 6 and a split retaining ring 7.
The wellhead chuck 1 is a square flat plate body, as shown in fig. 5, a circular hole 11a and a chuck cable lead-in groove 11b are arranged on the disk surface, a carrying handle 19 is also arranged, the lower part of the suspension main body 2 is provided with a radial shrinkage area and forms a radial shrinkage shoulder 12, a conical cavity is arranged in the suspension main body, a cylindrical inner cavity with a certain length is arranged at the lower part of the conical cavity, an internal thread is arranged at the lower end head, a main cable lead-in groove 13 which penetrates through the axial direction and is communicated with the conical cavity is further arranged on the side wall, the diameter of the radial shrinkage area is matched with the circular hole arranged on the disk surface of the wellhead chuck, the split slip 3 is composed of two symmetrical flaps which are combined to form a complete cone, 2 connecting positioning pins 14 are symmetrically arranged between the two flaps, and the slip pressing sleeve 4 is installed at the upper end part of the conical cavity in the suspension main, can revolve and advance to support and press run from opposite directions slips 3, 5 upper ends of two box joints are provided with the internal thread of connecting the oil field drilling rod, and lower extreme threaded connection installs run from opposite directions check ring 7, and evenly distributed has seted up 4 well liquid circulation passageways 20 on the lateral wall, elasticity threaded ring 6 is whole to be annular barrel, as shown in figure 6, evenly distributed has seted up the ring body cable lead-in groove 9 and the elastic groove 15 that the axial is link up on the lateral wall, and the upper end is provided with evagination rand 16, has seted up fastening screw 8a on the ring body and corresponds complex fastening screw 8b hang the lateral surface of main part 2 with reserve between the medial surface of elasticity threaded ring 6 has certain elastic deformation space 10, run from opposite directions check ring 7 with elasticity threaded ring 6 can cooperate and constitute along axial elasticity joint cooperation structure.
Meanwhile, as shown in fig. 1 and 2, 2 detachable first and second lever 17a and 18a are symmetrically disposed on the double female joint 5 and the suspension body 2, respectively, and first and second lever mounting holes 17b and 18b are correspondingly formed in the side walls of the double female joint 5 and the suspension body 2 to be correspondingly matched with the first and second lever 17a and 18 a.
To assist in the disassembly of the slip 3, as shown in fig. 7 and 8, a ram 20 and a press cap 21 are also provided.
In the process of open hole logging operation, when unexpected conditions such as well kick or dangerous gas overflow occur, the method for quickly suspending the cable and connecting the drill rod by using the well control logging cable hanger with the drilling tool quick connecting mechanism comprises the following steps:
step 1, a logging cable is guided into a circular hole 11a formed in a disc surface through a chuck cable guide groove 11b formed in a wellhead chuck 1, the wellhead chuck 1 is placed on an oil well wellhead square tile, and the oil well wellhead is covered integrally;
and 5, lifting the oil well drill rod until the suspension body 2 is separated from the wellhead chuck 1, quickly removing the wellhead chuck 1, then sending the oil well drill rod downwards into an oil well, and injecting circulating mud through the oil well drill rod to carry out well killing treatment.
After completing the downhole shut-in operation, lifting an oil well drill rod, lifting the logging instrument and the well control logging cable hanger to the ground, moving the split retaining ring 7 to rotate relative to the double female joint 5 by using a special tool, loosening the threaded connection between the split retaining ring 7 and the double female joint 5, taking off two split retaining rings 7, rotationally unloading the slip pressure sleeve 4 at the upper end of the suspension body 2, ejecting the split slips 3 from the suspension body 2 at the lower end of the suspension body 2 by using a split slip disassembling tool assembly, separating the logging instrument from the well control logging cable hanger, transporting the suspension body 2 away from the oil well mouth by using the second moving rod 18a again, simultaneously detaching the double female joint 5 from the oil well drill rod, transporting the double female joint 5 away from the oil well mouth by using the first moving rod 17a, finally, a drilling tool can be connected to the well drill rod for the necessary drilling operation.
Claims (10)
1. A well-controlled logging cable hanger, comprising: well head chuck (1), hang main part (2), run from opposite directions slips (3) and slips pressure sleeve (4), well head chuck (1) is the dull and stereotyped body, has seted up circular port (11 a) in the quotation, has still seted up chuck cable lead-in groove (11 b) simultaneously, the upper end of hanging main part (2) is seted up there is the internal thread, and the lower part has the reducing region and forms reducing circular bead (12), and inside has the taper cavity, sets up on the lateral wall and link up the axial, intercommunication the main part cable lead-in groove (13) of taper cavity, the diameter in reducing region and the circular port (11 a) of seting up in well head chuck (1) quotation form mutually supporting, make reducing circular bead (12) can support in the quotation of well head chuck (1), run from opposite directions slips (4) constitute by two symmetry lamella bodies, two the combination of lamella body forms a complete cone, the tapering and the size of cone and hang main part (2) inside seting up the toper cavity form and correspond the cooperation, slips pressure sleeve (4) threaded connection is installed hang the upper end of the inside toper cavity of main part (2), can advance to support and press to run from opposite directions slips (3).
2. The well-controlled logging cable hanger defined in claim 1, wherein: and a connecting positioning pin (7) is arranged between the two valve bodies forming the split slip (3).
3. The well-controlled logging cable hanger defined in claim 2, wherein: the butt joint surfaces of the two petals are correspondingly provided with well logging cable embedding arc grooves, so that the two petals form a circular well logging cable embedding round hole after being combined.
4. The well-controlled wireline hanger of claim 1, further comprising: and a second lever (18 a), and a second lever mounting hole (18 b) for mounting the second lever (18 a) is formed in the outer side surface of the suspension body (2).
5. A well-controlled wireline hanger as in any of claims 1-4, further comprising: the double-female joint comprises a double-female joint (5), an elastic threaded ring (6) and split retaining rings (7), wherein internal threads are respectively arranged at the upper end and the lower end of the double-female joint (5), a well fluid circulating channel (20) for communicating the inside and the outside is arranged on the side wall, the split retaining rings (7) are arranged at the lower end in a threaded connection manner, external threads are further arranged at the upper end of a hanging main body (2), the elastic threaded ring (6) is integrally an annular cylinder body, a ring body cable guide groove (9) and an elastic groove (15) which are axially communicated are uniformly distributed on the side wall, internal threads are arranged at the lower end of the elastic threaded ring, an outer convex clamping ring (16) is arranged at the upper end of the hanging main body (2) in a threaded connection manner, a certain elastic deformation space (10) is reserved between the outer side face of the hanging main body (2) and the inner, wherein, run from opposite directions stop ring (7) with elasticity screw ring (6) structure corresponds each other, can cooperate to form along axial elasticity joint cooperation structure.
6. The well-controlled logging cable hanger defined in claim 5, wherein: the elastic threaded ring (6) is further provided with a fastening screw hole (8 b), and the fastening screw hole (8 b) is matched with a fastening screw (8 a) to fasten the elastic threaded ring (6) which is in threaded connection with the suspension main body (2) on the suspension main body (2).
7. The tool quick connect mechanism of a well control logging cable hanger as recited in claim 5, further comprising: the outer side surface of the double female joint (5) is also provided with a first lever mounting hole (17 b) for mounting the first lever (17 a).
8. The well-controlled logging cable hanger defined in claim 5, wherein: the lower part of the conical cavity of the suspension main body (2) is provided with a cylindrical inner cavity with a certain length, and the end head of the lower end is provided with an internal thread.
9. A well logging cable hanger tool assembly configured with the well logging cable hanger of claim 8, wherein: the cable guide device is characterized by comprising a push rod and a pressing cap, wherein the push rod and the push cap are integrally of cylindrical structures, a push rod cable guide groove and a push cap cable guide groove are respectively formed in the side walls of the push rod and the push cap, and external threads are arranged on the push cap.
10. A method for quickly suspending a wireline and connecting a drill pipe using the well-controlled logging cable hanger defined in any one of claims 5 to 8, comprising the steps of:
step 1, a logging cable is guided into a circular hole (11 a) formed in a disc surface through a chuck cable guide groove (11 b) formed in a wellhead chuck 1, the wellhead chuck (1) is placed on an oil well wellhead square tile, and the oil well wellhead is covered integrally;
step 2, quickly moving a suspension main body (2) which is provided with an elastic thread ring (6) in advance to the wellhead chuck (1), guiding the logging cable into a conical cavity in the suspension main body (2) through a main body cable guide groove (13) formed in the suspension main body (2) and a ring body cable guide groove (9) formed in the elastic thread ring (6), then inserting the lower end of the suspension main body (2) into the circular hole (11 a), and supporting a reducing shoulder on the suspension main body (2) on the disc surface of the wellhead chuck (1) to enable the suspension main body (2) to be stably seated;
step 3, clamping two valve bodies of a split slip (3) on the logging cable along the cable direction, correspondingly inserting the combined split slip (3) into a conical cavity in the suspension main body (2), installing a slip pressure sleeve (4) at the upper end of the suspension main body (2), screwing in the slip pressure sleeve (4), fully pressing the split slip (3), slowly loosening the logging cable, checking the clamping state of the split slip (3) on the logging cable at any time until the tension of the logging cable is reduced to zero, and cutting the logging cable at a position 40-80 mm away from the upper part of the suspension main body (2) after checking and confirming the clamping again;
step 4, moving away a derrick travelling block on the upper part of a wellhead, aligning the derrick travelling block on the upper part of the wellhead with the suspension main body (2) through a double female joint (5) which is connected to an oil well drill rod in advance and is provided with a split anti-return ring (7), moving the oil well drill rod downwards, sleeving a female joint at the lower end of the double female joint (5) on a male joint at the upper end of the suspension main body (2), and sleeving an elastic ring of the split anti-return ring (7) on the elastic threaded ring (6) to be matched and clamped, so that the suspension main body (2) is connected with the oil well drill rod together through the double female joint (5);
and 5, lifting the oil well drill rod until the suspension body (2) is separated from the wellhead chuck (1), quickly removing the wellhead chuck (1), and then sending the oil well drill rod downwards into an oil well, and injecting circulating mud through the oil well drill rod to carry out well killing treatment.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021897425 | 2020-09-03 | ||
| CN2020218974254 | 2020-09-03 | ||
| CN202010936257 | 2020-09-09 | ||
| CN2020109362573 | 2020-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111946277A true CN111946277A (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010989686.7A Pending CN111946277A (en) | 2020-09-03 | 2020-09-19 | Well control logging cable hanger, tool assembly thereof and use method |
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| CN (1) | CN111946277A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115559683A (en) * | 2022-12-08 | 2023-01-03 | 易初机械装备有限公司 | Logging cable sealing suspension system |
-
2020
- 2020-09-19 CN CN202010989686.7A patent/CN111946277A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115559683A (en) * | 2022-12-08 | 2023-01-03 | 易初机械装备有限公司 | Logging cable sealing suspension system |
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