Mechanical wellhead hookup and blowing favourable turn adopt integrated apparatus
Technical field
The present invention relates to blowing favourable turn to adopt technical field, is that a kind of mechanical wellhead hookup and blowing favourable turn adopt one
Makeup is put.
Background technology
Straight well or exceptional well be drilled well construction operation after, the mode that conventional blowing favourable turn is adopted is by rig or repaiied
Loading the polished rod with rod-type pumping unit after well equipment kill-job makes oil well pump take a seat, and upper end connection cantilever-type oil pumping unit, then carries out
Machine adopts operation, and this mode exists and wasted time and energy, and operating efficiency is low, it is necessary to well killing fluid is pressed into bottom, and dirt is easily caused to stratum
Dye;Meanwhile expense is caused to greatly increase using rig or workover rig operating type;Therefore, the side that conventional blowing favourable turn is adopted
Formula presence is wasted time and energy, operating efficiency is low, stratum easily causes the problem of pollution and operating cost are high.
The content of the invention
The invention provides a kind of mechanical wellhead hookup and blowing favourable turn to adopt integrated apparatus, overcomes above-mentioned existing
There is the deficiency of technology, it can effectively be solved, and the mode presence that conventional blowing favourable turn is adopted is wasted time and energy, operating efficiency is low, stratum is easy
Pollute with operating cost it is high the problem of.
One of technical scheme is realized by following measures:A kind of mechanical wellhead hookup, bag
Include mandrel, tubing nipple, middle cylinder and box cupling;It is axially disposed in mandrel to have through hole;It is provided with the upper outside of mandrel outer
Screw thread, the upper inner of tubing nipple and the upper outside of mandrel are threadably secured and are installed together, the upper inner of box cupling
It is fixedly installed togather with the lower outside of tubing nipple, the lower outside of mandrel is provided with annular groove, outside the upper end of middle cylinder
Side is integrally fixed with fixture block, is integrally fixed with chuck in the lower inside of tubing nipple, the fixture block seat on middle cylinder is in tubing nipple
On chuck on, middle cylinder is pressed in the annular groove of mandrel by tubing nipple, and opening is installed with the lower outside of middle cylinder
U-shaped lower contact upward;Form downward opening circular passage between U-shaped lower contact, middle cylinder, mandrel and box cupling, in mandrel and
The flowing hole being connected with the through hole of mandrel and circular passage is provided with middle cylinder;The upper inner of mandrel is provided with interior spiral shell
Line, the upper internal threaded and upper external thread of mandrel are oppositely oriented.
Here is the further optimization and/or improvements to one of foregoing invention technical scheme:
The above-mentioned lower outside in middle cylinder is provided with outer mounting groove, and the upper inner of U-shaped lower contact is provided with interior installation
Groove, the top of U-shaped lower contact are fixedly mounted in the outer mounting groove of middle cylinder, the lower end outside of mandrel are provided with neck, in card
Restraining position ring block is fixedly mounted in groove, the outer end of spacing ring is located in the interior mounting groove of U-shaped lower contact, and spacing ring under U-shaped by connecing
Head is pressed on the lower surface of middle cylinder.
Through hole in above-mentioned mandrel is the small stepped hole in the big middle part in top and bottom;Set on the bottom face of U-shaped lower contact
Groove is equipped with, internal thread is provided with the inwall of groove.
The upper end medial surface of above-mentioned mandrel is inclined-plane wide at the top and narrow at the bottom, and the upper end medial surface of tubing nipple is wide at the top and narrow at the bottom
Inclined-plane, the lower end inside face of tubing nipple is up-narrow and down-wide inclined-plane.
The above-mentioned upper outside in tubing nipple is provided with external screw thread.
Above-mentioned box cupling and tubing nipple, which are threadably secured, to be installed together, and middle cylinder and U-shaped lower contact is threadably secured
It is installed together.
The two of technical scheme are realized by following measures:One kind uses mechanical wellhead hookup
Blowing favourable turn adopt integrated apparatus, including mechanical wellhead hookup, well head, production tree, sleeve pipe, oil pipe, sucker rod and
Thermal packer;Production tree is fixedly mounted on well head, packing box is installed with the upper port of corresponding production tree, in disk
Preventer and integrated well head device are installed with respectively on root box, and sleeve pipe, oil pipe are installed with oil recovery lower part of a tree
Inwall on the outside of the upper end of pipe nipple with production tree is fixedly installed togather, fixed on the outside of the lower inside of box cupling and the upper end of oil pipe
It is installed together, screen casing is installed with the lower end of oil pipe, plug is installed with the lower end of screen casing;The upper end of sucker rod
It is fixedly installed togather with the lower end of U-shaped lower contact, safety barrel formula bottom is installed with the lower end of sucker rod and fixes insert pump,
Rod-type pump mount base is installed with the lower inside of oil pipe, safety barrel formula bottom is fixed between insert pump and rod-type pump mount base between having
Away from;Thermal packer is installed with the lower outside of oil pipe.
Here is two further optimization and/or improvements to foregoing invention technical scheme:
It is above-mentioned to have support and polished rod above well head;It is provided with respectively by axle in the left lower and lower right side of support
Fixed pulley, steel wire rope is connected with two fixed pulleys, movable pulley, polished rod are installed on the steel wire rope between two fixed pulleys
Lower end through being fixedly installed togather on the inside of the upper end of packing box and mandrel, movable pulley is pressed on the upper of polished rod by steel wire rope
On end face.
It is above-mentioned that sealed packing is installed between polished rod and packing box, it is provided between thermal packer and sleeve pipe close
Sealing cylinder.
Above-mentioned polished rod and mandrel, which are threadably secured, to be installed together, and oil pipe and rod-type pump mount base are threadably secured installation
Together, oil pipe and thermal packer, which are threadably secured, is installed together, and oil pipe and screen casing are threadably secured and be arranged on
Together, screen casing and plug, which are threadably secured, is installed together.
Reasonable and compact in structure of the present invention, it is easy to use, by support, polished rod, mechanical wellhead hookup, sleeve pipe,
Oil pipe, sucker rod and thermal packer are used cooperatively, and realize the later stage no longer with safety barrel formula bottom fix bar under workover rig
Formula pump, blowing favourable turn is adopted integration, there is the characteristics of safe and reliable, facilitate operation, the work for reducing operating personnel is strong
Degree and operating cost, improve operating efficiency, have prevented the pollution to stratum.
Brief description of the drawings
Accompanying drawing 1 is the main view section view mplifying structure schematic diagram of mechanical wellhead hookup.
Accompanying drawing 2 is the main view broken section structural representation that blowing favourable turn adopts integrated apparatus.
Coding in accompanying drawing is respectively:1 is mandrel, and 2 be tubing nipple, and 3 be middle cylinder, and 4 be box cupling, and 5 be through hole, and 6 be card
Block, 7 be chuck, and 8 be U-shaped lower contact, and 9 be circular passage, and 10 be flowing hole, and 11 be spacing ring, and 12 be groove, and 13 be well head,
14 be production tree, and 15 be sleeve pipe, and 16 be oil pipe, and 17 be sucker rod, and 18 be thermal packer, and 19 be packing box, and 20 be blowout prevention
Device, 21 integrated wellhead assemblies, 22 be screen casing, and 23 be plug, and 24 be that insert pump is fixed in safety barrel formula bottom, and 25 be insert pump base
Seat, 26 be support, and 27 be polished rod, and 28 be fixed pulley, and 29 be steel wire rope, and 30 be movable pulley.
Embodiment
The present invention is not limited by following embodiments, can technique according to the invention scheme and actual conditions it is specific to determine
Embodiment.
In the present invention, for the ease of description, the description of the relative position relation of each part is according to Figure of description 1
Butut mode be described, such as:The position relationship of forward and backward, upper and lower, left and right etc. is the cloth according to Figure of description 1
Figure direction determines.
With reference to embodiment and accompanying drawing, the invention will be further described:
Embodiment 1, as shown in accompanying drawing 1,2, the mechanical wellhead hookup includes mandrel 1, tubing nipple 2, the and of middle cylinder 3
Box cupling 4;It is axially disposed in mandrel 1 to have through hole 5;The upper outside of mandrel 1 is provided with external screw thread, tubing nipple 2 it is upper
It is threadably secured and is installed together with the upper outside of mandrel 1 on the inside of portion, under the upper inner and tubing nipple 2 of box cupling 4
It is fixedly installed togather on the outside of portion, the lower outside of mandrel 1 is provided with annular groove, is integrally fixed with the outside of the upper end of middle cylinder 3
Fixture block 6, integrally it is fixed with chuck 7 in the lower inside of tubing nipple 2,6 cards on tubing nipple 2 of fixture block on middle cylinder 3
On platform 7, middle cylinder 3 is pressed on by tubing nipple 2 in the annular groove of mandrel 1, and opening court is installed with the lower outside of middle cylinder 3
On U-shaped lower contact 8;Downward opening circular passage 9 is formed between U-shaped lower contact 8, middle cylinder 3, mandrel 1 and box cupling 4, in core
The flowing hole 10 being connected with the through hole of mandrel 15 and circular passage 9 is provided with axle 1 and middle cylinder 3;In the upper inner of mandrel 1
Internal thread is provided with, the upper internal threaded and upper external thread of mandrel 1 are oppositely oriented.So, circular passage 9 and mandrel 1 and in
Flowing hole 10 on cylinder 3 is easy to liquid communication;During rotary core shaft 1, tubing nipple 2 and box cupling 4 can depart from mandrel 1, be easy to certainly
Spray favourable turn adopts operation.
Above-described embodiment 1 can be made further optimization and/or improvements according to being actually needed:
As shown in Figure 1, the lower outside of middle cylinder 3 is provided with outer mounting groove, set in the upper inner of U-shaped lower contact 8
Interior mounting groove is equipped with, the top of U-shaped lower contact 8 is fixedly mounted in the outer mounting groove of middle cylinder 3, set in the lower end outside of mandrel 1
Neck is equipped with, restraining position ring block 11 is fixedly mounted in neck, the outer end of spacing ring 11 is located in the interior mounting groove of U-shaped lower contact 8,
Spacing ring 11 is pressed on by U-shaped lower contact 8 on the lower surface of middle cylinder 3.So, interior mounting groove and outer mounting groove are easy under U-shaped
Installation between joint 8 and middle cylinder 3, the external diameter of U-shaped lower contact 8 is set to be less than or equal to the middle part external diameter of middle cylinder 3.
As shown in Figure 1, the upper end medial surface of mandrel 1 is inclined-plane wide at the top and narrow at the bottom;The upper end medial surface of tubing nipple 2 is
Inclined-plane wide at the top and narrow at the bottom;The lower end inside face of tubing nipple 2 is up-narrow and down-wide inclined-plane.
As shown in Figure 1, the through hole 5 in mandrel 1 is the small stepped hole in the big middle part in top and bottom;In U-shaped lower contact 8
Fluted 12 are set on bottom face, internal thread is provided with the inwall of groove 12.So, it is recessed on the bottom face of U-shaped lower contact 8
Groove 12 is easily installed.
As needed, the upper outside of tubing nipple 2 is provided with external screw thread.So, be easy to tubing nipple 2 installation and
Dismounting.
As shown in Figure 1, box cupling 4 and tubing nipple 2 are threadably secured and are installed together, middle cylinder 3 and U-shaped lower contact 8
It is threadably secured and is installed together.So, threaded connection is easily installed and dismantled.
Embodiment 2, as shown in Figure 2, this adopts integrated apparatus bag using the blowing favourable turn of mechanical wellhead hookup
Include mechanical wellhead hookup, well head 13, production tree 14, sleeve pipe 15, oil pipe 16, sucker rod 17 and thermal packer 18;
Production tree 14 is fixedly mounted on well head 13, packing box 19 is installed with the upper port of corresponding production tree 14, in packing box
Preventer 20 and integrated well head device 21 are installed with 19 respectively, sleeve pipe is installed with the bottom of production tree 14
15, the upper end outside of tubing nipple 2 and the inwall of production tree 14 are fixedly installed togather, the lower inside and oil pipe 16 of box cupling 4
Upper end on the outside of be fixedly installed togather, be installed with screen casing 22 in the lower end of oil pipe 16, screen casing 22 lower end fix peace
Equipped with plug 23;The upper end of sucker rod 17 and the lower end of U-shaped lower contact 8 are fixedly installed togather, and consolidate in the lower end of sucker rod 17
Insert pump 24 is fixed equipped with safety barrel formula bottom by Dingan County, and rod-type pump mount base 25, safety barrel are installed with the lower inside of oil pipe 16
Formula bottom, which is fixed between insert pump 24 and rod-type pump mount base 25, spacing;High temperature resistant is installed with the lower outside of oil pipe 16
Packer 18.Insert pump is fixed in production tree 14, sleeve pipe 15, oil pipe 16, sucker rod 17, thermal packer 18, safety barrel formula bottom
24th, rod-type pump mount base 25 and integrated well head device are prior art.
Above-described embodiment 2 can be made further optimization and/or improvements according to being actually needed:
As shown in Figure 2, there are support 26 and polished rod 27 above well head 13;In the left lower and lower right side of support 26
Fixed pulley 28 is provided with by axle respectively, steel wire rope 29 is connected with two fixed pulleys 28, between two fixed pulleys 28
Movable pulley 30 is installed, the lower end of polished rod 27 is fixedly mounted on through the upper end of packing box 19 and mandrel 1 inner side on steel wire rope 29
Together, movable pulley 30 is pressed on by steel wire rope 29 on the upper surface of polished rod 27.So, by being exerted a force to steel wire rope 29, so as to
Realization applies downward pressure to polished rod 27.Pass through support 26, polished rod 27, mechanical wellhead hookup, sleeve pipe 15, oil pipe
16th, sucker rod 17 and thermal packer 18 are used cooperatively, and realize that the later stage is no longer fixed with safety barrel formula bottom under workover rig
Insert pump 24, blowing favourable turn is adopted integration, there is the characteristics of safe and reliable, facilitate operation, reduce the labor of operating personnel
Fatigue resistance and operating cost, improve operating efficiency, have prevented the pollution to stratum.
As needed, sealed packing is installed between polished rod 27 and packing box 19;In thermal packer 18 and sleeve pipe
Cartridge is installed between 15.So, sealed packing and cartridge play a part of sealing.
As needed, polished rod 27 and mandrel 1 are threadably secured and are installed together;Oil pipe 16 and rod-type pump mount base 25 pass through
It is screwed and is installed together;Oil pipe 16 and thermal packer 18 are threadably secured and are installed together;Oil pipe 16 and screen casing
22 are threadably secured and are installed together;Screen casing 22 and plug 23 are threadably secured and are installed together.So, it is threadedly coupled just
In installation and removal.
Above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can basis
The non-essential technical characteristic of increase and decrease is actually needed, to meet the needs of different situations.
The use process of preferred embodiment:During onsite application, before acid fracturing, tripping in band plug 23, screen casing
22nd, thermal packer 18 and the oil pipe of rod-type pump mount base 25 16 are to target zone;Pitching builds the pressure, and thermal packer 18 is effective
Sealing layer position;Then the U-shaped lower contact 8 of mechanical wellhead hookup is fixedly installed togather with sucker rod 17, oil pipe is short
Section 2 is fixedly installed togather with production tree 14, and box cupling 4 is fixedly installed togather with OIH pipe 16, and now safety barrel formula bottom is consolidated
Determine insert pump 24 not being in prison fixation, freed in and out in order to facilitate acid fracturing and blowing fluid, rod-type is fixed in safety barrel formula bottom
Pump 24 has a certain distance with rod-type pump mount base 25;After acid fracturing, ring cavity of the oil gas between sucker rod 17 and oil pipe 16,
Flowing hole 10 on circular passage 9, mandrel 1 and middle cylinder 3 enters in the through hole 5 in mandrel 1, passes through subsequently into packing box 19 anti-
The blowing of spray apparatus 20;Blowing terminates to make a connection and adopted after a period of time, and at this moment, two crane scenes in place, support 26 are placed on and adopted
The surface of oil tree 14, hook of the both ends of steel wire rope 29 respectively with two cranes is linked together, in Operating Pressure situation
Under, steel wire rope 29 is embedded in movable pulley 30 and pushes down the polished rod 27 being inserted into, when crane boom pulls steel wire rope 29 up, steel wire rope
29 insertion movable pulleys 30 constantly to polished rod 27 apply pressure make its it is descending be nested on the inside of the upper end of mandrel 1, rotary core shaft 1, light
Bar 27 is connected with the upper end right-hand thread of mandrel 1, while polished rod 27 and mandrel 1 link closely, the left-hand thread screw thread of mandrel 1 and tubing nipple 2
In shackle, final mandrel 1 departs from tubing nipple 2, pipe string directly can be proposed into well head 13, pipe string includes mandrel 1, middle cylinder 3, U
Insert pump 24 is fixed in shape lower contact 8, sucker rod 17 and safety barrel formula bottom, is then again fixed safety barrel formula bottom by sucker rod 17
Insert pump 24 is lowered into rod-type pump mount base 25, and in the upper end of polished rod 27, connection girder-like oil pump carries out machine and adopts operation;Sealed packing
Box 19 is to play a part of sealing Operating Pressure when polished rod 27 inserts and pipe is strung out.