CN203081390U - Horizontal well logging suspension unlocking device - Google Patents
Horizontal well logging suspension unlocking device Download PDFInfo
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- CN203081390U CN203081390U CN 201220605753 CN201220605753U CN203081390U CN 203081390 U CN203081390 U CN 203081390U CN 201220605753 CN201220605753 CN 201220605753 CN 201220605753 U CN201220605753 U CN 201220605753U CN 203081390 U CN203081390 U CN 203081390U
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- 230000006835 compression Effects 0.000 claims abstract description 5
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- 210000001503 joint Anatomy 0.000 claims description 36
- 210000000056 organ Anatomy 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 3
- 241000237983 Trochidae Species 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 241000254175 Anthonomus grandis Species 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
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- 210000000080 chela (arthropods) Anatomy 0.000 description 4
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- 239000002184 metal Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 206010055018 Gingival cyst Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000012467 final product Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A horizontal well logging suspension unlocking device is applied to horizontal well logging. Is characterized in that: the hanger is hung on a hanging step of a hanging body in the hanging anti-jacking shell through a hanging slip ring; the lower end of the coupling is connected with the upper end of the anti-jacking body through the internal thread of the oil pipe; the lower end of the anti-jacking body is in threaded connection with a suspension body; the upper cone is provided with a central hole; the bottom end of the upper end cylinder of the upper cone is provided with an annular groove; an anti-jacking snap ring is arranged in the annular groove; a hanging slip ring is sleeved on the cone in the middle of the upper cone; the upper cone is sleeved with a return spring which is a compression spring; the return spring is arranged between the hanging slip ring and the cone connector; the effect is as follows: the suspension is reliable, a 7-ton tappet column can be suspended, and the unlocking is smooth.
Description
Technical field
The utility model relates to the oil reservoir logging technical field, and the tappet that is particularly adopted in the horizontal well rod tube conveying well measuring process hangs tripper.
Background technology
At present, North China Oilfield oil production technology academy has researched and developed a kind of employing rod tube associating instrument delivery technology, in delivery technology, how tappet post and tester are suspended on the tubing string, simultaneously, the release that can also hang after instrument arrives test position can abovely be carried tester, finishing follow-on test, is that the decision rod tube is carried key of success.
Chinese patent notification number CN201024941 discloses a kind of " screen pipe hanger ".Be used for drilling process, hang completion tools such as tail pipe, screen casing, be applicable to straight well, inclined shaft, extended reach well, horizontal well completion technology, particularly be applicable to horizontal well horizontal segment sieve tube completion technology.Screen pipe hanger is conciliate sealing mechanism by sealing mechanism, pawl gingival cyst of mucous gland in the newborn retaining mechanism, control lock mechanism, the anchor mechanism of releasing device, packing oil jacket annular space and is constituted.Just can realize or instead for mud, for technologies such as oil layer protection liquid, pickling oil reservoir that by drill string then build the pressure in the drill string and finish screen pipe hanger and set, grappling reaches the purpose that hangs screen casing, packing oil jacket annular space and give up, and after realizing giving up, can completion go into operation.If when need salvaging, be lowered to the lance that drags for the sleeve pipe coupling, drag for the hanger inwall, on carry drill string, cut off deblocking and cut ring, get final product deblocking, screen pipe hanger is proposed.Owing in the salvaging process, need drag for lance, can't stay test channel for test cable, can't satisfy the needs of horizontal wellbore logging.
China Patent No. ZL 201020513922, disclose a kind of packing box gland hanger, are applied to oil recovery technique field, oil field.Mainly be made up of jaw, pincers handle, pivot pin and pintle, jaw has pivot pin to the centre with pincers.Jaw is two circular arc steel plates, and pincers are being arc, pincers tail end pintle is arranged respectively, two jaws relatively the interior circular diameter of back jaw between 27～33 millimeters.Effect is: the packing box gland can be temporarily fixed on the polished rod, use is simple, and is easy to carry, greatly reduces oil recovery worker's labour intensity, improved efficiency, reduced security incident.This hanger can only hang lighter weight, can't reach the requirement of hanging 7 tons of weight of test tappet post.
Chinese patent notification number CN200946472 discloses a kind of " cassette mandrel boll-weevil hanger ".This boll-weevil hanger mainly is made up of boll-weevil hanger body, split ring collar, metal o-ring, the upper end endoporus of boll-weevil hanger body is established tubing round thread, processing one cannelure on the cylindrical of boll-weevil hanger body, the split ring collar is installed in the cannelure, metal o-ring is installed in the upper end of boll-weevil hanger body, by the split ring collar boll-weevil hanger body is fixed on the tubing head body, by metal o-ring Seal Oil tube head body, upper flange fitting face, simple in structure, easy to operate, sealing effectiveness is lasting.This hanger structure can't be finished the requirement of proposing release in the down-hole, can't satisfy the needs of horizontal wellbore logging.
The utility model content
The purpose of this utility model is: provide a kind of horizontal wellbore logging to hang tripper, can make rod tube transporting water horizontal well tester arrive the horizontal well shaft bottom and guarantee and log well successfully.
The technical solution adopted in the utility model is: horizontal wellbore logging hangs tripper, forms by hanging anti-top shell and hanger, and hanger is suspended on the suspension step that hangs suspension body in the shell of anti-top by hanging the slips ring;
Hang anti-top shell and be made up of box cupling, anti-acrosome and suspension body, box cupling is that the cylinder bodily form and two ends have the oil pipe internal thread, and the box cupling lower end is connected with anti-acrosome upper end by the oil pipe internal thread; Anti-acrosome is a cylindrical shape, and there is guiding channel the upper end of anti-acrosome centre bore, and guiding channel is the taper seat in anti-acrosome centre bore upper end; Anti-acrosome centre bore is last butt joint passage; There is ring-shaped step butt joint passage lower end on anti-acrosome, and the ring-shaped step of butt joint passage lower end is an anti-top step on the anti-acrosome; There is internal thread the lower end of anti-acrosome, and suspension body is threaded in anti-acrosome lower end; Suspension body is a cylindrical shape, and it is to dock passage down that there is centre bore the suspension body lower end; There is ring-shaped step the following butt joint passage upper end of suspension body, and the ring-shaped step of the following butt joint passage upper end of suspension body is to hang step; Between the suspension step of the anti-top step of preventing acrosome and suspension body is columniform suspension cavities, and the diameter of suspension cavities is than the big 6～12mm of diameter of last butt joint passage and following butt joint passage; Last butt joint passage is identical with the diameter of docking passage down;
Hanger mainly is made up of upper cone, anti-top snap ring, jackscrew, suspension slips ring, back-moving spring and cone connector; The upper end of upper cone is a cylinder, and the middle part of upper cone is a cone, and the lower end of upper cone is a cylinder; On upper cone is vertical a diameter being arranged is the centre bore of 5～10mm, and there is chamfering at the two ends of upper cone centre bore; There is internal thread the upper end of upper cone, can be connected the lower end of the anti-apical organ of horizontal wellbore logging during use;
There is external screw thread the upper cone lower end, the upper cone lower end cone connector that is threaded; There is internal thread the lower end of cone connector, is connected with the upper end of horizontal wellbore logging tappet;
In cylindrical bottom, upper cone upper end, and the groove of an annular is arranged on the top of upper cone middle part cone; An anti-top snap ring is arranged in the groove of annular; Anti-top snap ring is two semicircular ring structures, and the lateral edge of semicircular ring has screwed hole, and by jackscrew two semicircular ring being fixed together becomes an annulus;
Be taper at the upper cone middle part, wide at the top and narrow at the bottom, rake angle is 15～30 °; On the cone of upper cone middle part, be with and hang the slips ring; Hanging the slips ring is an annulus that adopts spring steel to make, and the outside is cylindrical, and inner wide at the top and narrow at the bottom, the angle of inclination is 15～30 °; Hang slips ring side a slit is arranged; Be with back-moving spring on the upper cone; Back-moving spring is the compression spring of taper, and is wide at the top and narrow at the bottom, and the angle of inclination is 15～30 °; Back-moving spring is hanging between slips ring and the cone connector;
The cone connector is a cylinder, and top has internal thread to link to each other with upper cone, and the bottom has internal thread to link to each other with tappet, cone connector internal run-through.
Between upper cone and cone connector, sealing ring is arranged.
On-the-spot using method is:
1, when the tappet post be lowered to finish after, the cone connector of hanger is connected with the tappet post; The upper cone of hanger upper end is connected with the anti-apical organ of horizontal wellbore logging, and anti-apical organ top stube cable is fished for joint;
2, will hang with production rig and slowly transfer after anti-top shell is sling;
3, the hanger guiding is entered the following butt joint passage that hangs anti-top shell, then the hanger guiding is entered the suspension cavities that hangs anti-top shell, finish suspension;
4, the box cupling that hangs anti-top shell upper is connected with oil pipe, by being lowered to multiple-tubing string, tappet and tester is transported to the precalculated position of horizontal well horizontal segment;
When 5, needing release, utilize cable stube cable catching device, under the oil pipe lower going-into-well, cable catching device and downhole cable are fished for joint and are finished and dock, and last portable cable can be finished the suspension release.
Assembling, operating principle and the course of work that the summary horizontal wellbore logging hangs tripper:
Consult Fig. 1.Connect box cupling 101, anti-acrosome 102 and suspension body 103 successively, finish the assembling of hanging anti-top shell 1.
Consult Fig. 2.Be installed in anti-top snap ring 202 in the groove of upper cone 201 by jackscrew 203; Upper cone 201 lower ends are passed and are hung slips ring 204 and back-moving spring 205, and upper cone 201 lower ends are connected with cone connector 206, finish the assembling of hanger 2.
Consult Fig. 3.To hang anti-top shell 1 slings and transfers; The upper cone 201 of hanger 2 and upper cone 201 upper end internal threads connect whole following butt joint passage F that hang anti-top shell 1 that import such as the anti-apical organ of horizontal wellbore logging, until entering suspension cavities D; Hang slips ring 204 and be suspended on the suspension step E of suspension body 103, finish the assembling that horizontal wellbore logging hangs tripper.
Consult Fig. 3.When using at the scene, will hang anti-top shell 1 with production rig and sling and transfer; The upper cone 201 of hanger 2 and upper cone 201 upper end internal threads connect whole following butt joint passage F that hang anti-top shell 1 that import such as the anti-apical organ of horizontal wellbore logging; It is descending on the inclined-plane of the effect lower edge of external force upper cone 201 in the entrance of docking passage F down to hang slips ring 204, and the external diameter that hangs slips ring 204 diminishes, and enters down butt joint passage F; Enter the suspension cavities D of the anti-top of suspension shell 1 when hanger 2 after, on carry and hang anti-top shell 1, it is up on the inclined-plane of the effect lower edge of back-moving spring 205 strength upper cone 201 cones to hang slips ring 204, and the external diameter that hangs slips ring 204 becomes big, is suspended on the suspension step E of suspension body 103.When needing release, on carry the upper cone 201 of hanger 2, hanging slips ring 204 contacts with the anti-top step C that hangs anti-top shell 1, carry the upper cone 201 of hanger 2 in the continuation, it is descending on the cone inclined-plane of the effect lower edge of external force upper cone 201 to hang slips ring 204, and the external diameter that hangs slips ring 204 diminishes, and hangs slips ring 204 and enters the butt joint channel B, until hanger 2 is proposed to hang anti-top shell 1, finish release.
The beneficial effects of the utility model: the utility model horizontal wellbore logging hangs tripper, and it is reliable to hang tappet, can hang 7 tons tappet, and is can also release smooth.
Description of drawings
Fig. 1 is the schematic diagram that horizontal wellbore logging hangs the anti-top of the suspension shell 1 of tripper.
Fig. 2 is the schematic diagram that horizontal wellbore logging hangs the hanger 2 of tripper.
Fig. 3 is that the utility model horizontal wellbore logging hangs the tripper schematic diagram, is that hanger 2 is suspended on the schematic diagram that hangs in the anti-top shell 1.
Among the figure, 1-hangs anti-top shell; The 101-box cupling; 102-prevents acrosome; The 103-suspension body; The 2-hanger; The 201-upper cone; The anti-top of 202-snap ring; The 203-jackscrew; 204-hangs the slips ring; The 205-back-moving spring; 206-cone connector.The A-guiding channel; The last butt joint of B-passage; The anti-top of C-step; The D-suspension cavities; E-hangs step; F-is the butt joint passage down.
The specific embodiment
Embodiment 1: hanging tripper with a horizontal wellbore logging is example, and the utility model is described in further detail.
Consult Fig. 1.Horizontal wellbore logging hangs tripper, forms by hanging anti-top shell 1 and hanger 2.Hanger 2 is suspended on the suspension step E that hangs anti-acrosome 102 in the anti-top shell 1 by hanging slips ring 204.
Hang anti-top shell 1 and be made up of box cupling 101, anti-acrosome 102 and suspension body 103, box cupling 101 is a cylindrical shape, and the external diameter of box cupling 101 is 89 millimeters.Box cupling 101 two ends have 2
7/
8" the oil pipe internal thread, box cupling 101 lower ends are connected with anti-acrosome 102 upper ends by the oil pipe internal thread, and box cupling 101 upper ends can be connected with oil pipe by the oil pipe internal thread.
Anti-acrosome 102 is a cylindrical shape, and anti-acrosome 102 external diameters are 73 millimeters; The internal diameter in anti-acrosome 102 central upper portion holes is 42mm, length 200mm, and its inner space is last butt joint channel B; The top of going up the butt joint channel B of anti-acrosome 102 is guiding channel A; Guiding channel A is wide at the top and narrow at the bottom, and 30 ° of conical surface chamferings are arranged.
There is ring-shaped step butt joint channel B lower end on anti-acrosome 102, and the ring-shaped step of butt joint channel B lower end is anti-top step C on the anti-acrosome 102; There is internal thread the lower end of anti-acrosome 102, and suspension body 103 is threaded in anti-acrosome 102 lower ends.
Between the suspension step E of anti-top step C that prevents acrosome 102 and suspension body 103 tubular suspension cavities D is arranged, the internal diameter of suspension cavities D is than the big 11mm of internal diameter of last butt joint channel B and following butt joint passage F, long 1500 millimeters.
Consult Fig. 2.Hanger 2 mainly is made up of upper cone 201, anti-top snap ring 202, jackscrew 203, suspension slips ring 204, back-moving spring 205 and cone connector 206.
The top of upper cone 201 is the cylinder of 38 millimeters of diameters, and there is the internal thread of M28 the upper end of upper cone 201, can be connected the lower end of the anti-apical organ of horizontal wellbore logging during use; Upper cone 201 bottoms are the cylinder of 20 millimeters of diameters, have external screw thread to be connected with cone connector 206, and there is sealing ring the junction; The centre of upper cone 201 is up big and down small taper, and 30 ° circular cone chamfering is arranged; At upper cone 201 diameters is 38 millimeters cylindrical bottoms, and promptly on the top of 30 ° of cones, it is 20 millimeters annular groove that a width is arranged on the outer wall, and the internal diameter of annular groove is 20 millimeters.It is 5 millimeters centre bore that there is diameter upper cone 201 inside, and there are 45 ° of chamferings at the two ends of centre bore.
Hanging slips ring 204 is the cylinders that adopt spring steel to make, external diameter 36mm, height 25mm; It is inner wide at the top and narrow at the bottom to hang slips ring 204, has to have 30 ° the conical surface; Hanging slips ring 204 sidewalls has the wide axial slit of 1.5mm, hangs slips ring 204 and is enclosed within on the cone of upper cone 201 centres; Hanging slips ring 204 can slide along the cone of upper cone 201, the external diameter that hangs slips ring 204 is increased or dwindles.
In the bottom that hangs slips ring 204 back-moving spring 205 is arranged, back-moving spring 205 is enclosed within the bottom of upper cone 201; Back-moving spring 205 is taper compression spring, 28 millimeters of the top maximum inner diameters of back-moving spring 205,20 millimeters of bottom minimum diameters;
Be connected with a cone connector 206 at the lower end of upper cone 201 screw thread; The lower surface of back-moving spring 205 withstands on the top of cone connector 206.
The bottom of upper cone 201 is passed and is hung slips ring 204, back-moving spring 205, and the screw thread by M20 is connected with cone connector 206.
Between cone connector 206, sealing ring is arranged at upper cone 201.
Its using method is as follows:
When the tappet post be lowered to finish after, the cone connector 206 of hanger 2 is connected with the tappet post; The upper cone 201 of hanger 2 upper ends is connected with the anti-apical organ of horizontal wellbore logging, and anti-apical organ top stube cable is fished for joint;
To hang with production rig and slowly to transfer after anti-top shell 1 is sling;
Hanger is led 2 guidings enter the following butt joint passage F that hangs anti-top shell 1, then hanger is led 2 guidings and enter the suspension cavities D that hangs anti-top shell 1, finish suspension;
The box cupling 101 that hangs anti-shell 1 top, top is connected with oil pipe, by being lowered to multiple-tubing string, tappet and tester is transported to the precalculated position of horizontal well horizontal segment;
When needing release, utilize cable stube cable catching device, under the oil pipe lower going-into-well, cable catching device and downhole cable are fished for joint and are finished and dock, and last portable cable can be finished the suspension release.
The operating principle that the summary horizontal wellbore logging hangs tripper is described in further detail the utility model.Consult Fig. 3.
When using at the scene, will hang anti-top shell 1 with production rig and sling and slowly transfer.The upper cone 201 of hanger 2 imports the following butt joint passage F that hangs anti-top shell 1; Hang slips ring 204 withstand on hang anti-top shell 1 suspension body 103 bottom, it is descending on the inclined-plane of the effect lower edge of external force upper cone 201 to hang slips ring 204, the external diameter that hangs slips 204 diminishes, and enters down to hang the following butt joint passage F that prevents top shell 1; Enter the suspension cavities D of the anti-top of suspension shell 1 when hanger 2 after, the suspension slips ring 204 of hanger 2 is up on the inclined-plane of the effect lower edge of back-moving spring 203 strength upper cone 201, the external diameter that hangs slips 204 becomes big, and suspension slips 204 is close on the inwall of the suspension cavities D that hangs anti-top shell 1; On carry and hang anti-top shell 1, it is up on the inclined-plane of the effect lower edge of back-moving spring 203 strength upper cone 201 to hang slips ring 204, hangs slips 204 and can be suspended on the suspension step E of suspension body 103; When needing release, on carry the upper cone 201 of hanger 2, hanging slips ring 204 up anti-top step C with the anti-top of suspension shell 1 contacts, carry the upper cone 201 of hanger in the continuation, it is descending on the inclined-plane of the effect lower edge of external force upper cone 201 to hang slips ring 204, and the external diameter that hangs slips 204 diminishes, and enters butt joint channel B and guiding channel A, until proposing to hang anti-top shell 1, finish release.
Claims (3)
1. a horizontal wellbore logging hangs tripper, form by hanging anti-top shell (1) and hanger (2), it is characterized in that: hanger (2) is suspended on the suspension step (E) that hangs the anti-interior suspension body of top shell (1) (103) by hanging slips ring (204);
Hang anti-top shell (1) and be made up of box cupling (101), anti-acrosome (102) and suspension body (103), box cupling (101) is for there is the oil pipe internal thread at the cylinder bodily form and two ends, and box cupling (101) lower end is connected with anti-acrosome (102) upper end by the oil pipe internal thread; Anti-acrosome (102) is a cylindrical shape, and there is guiding channel (A) upper end of anti-acrosome (102) centre bore, and guiding channel (A) is the taper seat in anti-acrosome (102) centre bore upper end; Anti-acrosome (102) centre bore is a last butt joint passage (B); Going up butt joint passage (B) lower end at anti-acrosome (102) has ring-shaped step, and the ring-shaped step that anti-acrosome (102) is gone up butt joint passage (B) lower end is anti-top step (C); There is internal thread the lower end of anti-acrosome (102), and suspension body (103) is threaded in anti-acrosome (102) lower end; Suspension body (103) is a cylindrical shape, and it is to dock passage (F) down that there is centre bore suspension body (103) lower end; There is ring-shaped step following butt joint passage (F) upper end of suspension body (103), and the ring-shaped step of following butt joint passage (F) upper end of suspension body (103) is to hang step (E); Between the suspension step (E) of the anti-top step (C) of preventing acrosome (102) and suspension body (103) is columniform suspension cavities (D), and the diameter of suspension cavities (D) is than the big 6～12mm of diameter of last butt joint passage (B) and following butt joint passage (F); Last butt joint passage (B) is identical with the diameter of docking passage (F) down;
Hanger (2) mainly is made up of upper cone (201), anti-top snap ring (202), jackscrew (203), suspension slips ring (204), back-moving spring (205) and cone connector (206); The upper end of upper cone (201) is a cylinder, and the middle part of upper cone (201) is a cone, and the lower end of upper cone (201) is a cylinder; On upper cone (201) is vertical a diameter being arranged is the centre bore of 5～10mm, and there is chamfering at the two ends of upper cone (201) centre bore; There is internal thread the upper end of upper cone (201), can be connected the lower end of the anti-apical organ of horizontal wellbore logging during use;
There is external screw thread upper cone (201) lower end, upper cone (201) the lower end cone connector (206) that is threaded; There is internal thread the lower end of cone connector (206), is connected with the upper end of horizontal wellbore logging tappet;
In cylindrical bottom, upper cone (201) upper end, and the groove of an annular is arranged on the top of upper cone (201) middle part cone; An anti-top snap ring (202) is arranged in the groove of annular; Anti-top snap ring (202) is two semicircular ring structures, and the lateral edge of semicircular ring has screwed hole, and by jackscrew (203) two semicircular ring being fixed together becomes an annulus;
Be taper at upper cone (201) middle part, wide at the top and narrow at the bottom, rake angle is 15～30 °; On the cone of upper cone (201) middle part, be with and hang slips ring (204); Hanging slips ring (204) is an annulus that adopts spring steel to make, and the outside is cylindrical, and inner wide at the top and narrow at the bottom, the angle of inclination is 15～30 °; Hang slips ring (204) side a slit is arranged; Be with back-moving spring (205) on the upper cone (201); Back-moving spring (205) is for the compression spring of taper, and is wide at the top and narrow at the bottom, and the angle of inclination is 15～30 °; Back-moving spring (205) is hanging between slips ring (204) and the cone connector (206);
Cone connector (206) is a cylinder, and top has internal thread to link to each other with upper cone (201), and the bottom has internal thread to link to each other with tappet, cone connector (206) internal run-through.
2. horizontal wellbore logging as claimed in claim 1 hangs tripper, it is characterized in that: between upper cone (201) and cone connector (206) sealing ring is arranged.
3. horizontal wellbore logging as claimed in claim 1 hangs tripper, it is characterized in that: described back-moving spring (205) is the compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605753 CN203081390U (en) | 2012-11-16 | 2012-11-16 | Horizontal well logging suspension unlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605753 CN203081390U (en) | 2012-11-16 | 2012-11-16 | Horizontal well logging suspension unlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203081390U true CN203081390U (en) | 2013-07-24 |
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ID=48827240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605753 Expired - Lifetime CN203081390U (en) | 2012-11-16 | 2012-11-16 | Horizontal well logging suspension unlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203081390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953702A (en) * | 2012-11-16 | 2013-03-06 | 中国石油天然气股份有限公司 | Horizontal well logging suspension unlocking device |
-
2012
- 2012-11-16 CN CN 201220605753 patent/CN203081390U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953702A (en) * | 2012-11-16 | 2013-03-06 | 中国石油天然气股份有限公司 | Horizontal well logging suspension unlocking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20160309 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |