|
CN112096351A
|
|
Polished rod lifting device
|
|
CN112049784A
|
|
Movable cylinder oil well pump
|
|
CN112097116A
|
|
Steam pressure stabilizing and stabilizing device for steam injection pipeline
|
|
CN111677657A
|
|
Double-channel steam injection oil extraction sand-proof antiscaling pump
|
|
CN111873365A
|
|
Sucker rod surface coating corrosion prevention method and corrosion-resistant sucker rod
|
|
CN111425173A
|
|
Sand washing and steam injection process for heavy oil well and matching device thereof
|
|
CN110700799A
|
|
Lower part feed liquor snubbing tool
|
|
CN110541694A
|
|
Wellhead skid-mounted process assembly
|
|
CN110617202A
|
|
Bridge type injection and suction sand-proof pump
|
|
CN110107261A
|
|
A kind of eddy flow mentions effect anticorrosion antiwear integration lifting technology and computer collecting system
|
|
CN110130858A
|
|
A kind of bridge-type note takes out wear-and corrosion-resistant drop and joins integrated lifting technology and computer collecting system
|
