letter of advice通知單
letter of authoyity授權(quán)書
lab house值班房
labour contract勞務(wù)合同
labour cost勞務(wù)費(fèi)用
labour distribution chart工人出勤表
labour insurance勞動(dòng)保險(xiǎn)
ladder belt安全帶
landing depth下入深度
landing nipple定位短節(jié)，提升短節(jié)
landing string下井管柱
land operation陸上作業(yè)
large producer高產(chǎn)井
laser-beam plotter激光繪圖儀
laser printer激光打印機(jī)
last casing完井套管
lateral側(cè)面的
lateral axis橫坐標(biāo)
lateral core 井壁取心
lateral drilling 水平鉆井，側(cè)向鉆井
lateral segment水平井段
lateral well水平井，側(cè)鉆井
laterolog側(cè)向測井
lead pig鉛罐
lay tongs管鉗
lost circulation洗井液漏失，井漏
LDL（litho-density log） leakage漏失
leak detection檢漏，查漏
lease rent租賃費(fèi)
lease term租賃期
leasing of equipment設(shè)備出租
legal person法人
legal personality法人資格
legitimate right合法權(quán)利
length overall總長
less permeable layer低滲透層
less waxy crude低含蠟原油
letter of guarantee擔(dān)保書
letter of intent意向書
letter of introduction介紹信
level 1 maintenance一級維修保養(yǎng)
limestone石灰?guī)r
liability責(zé)任，義務(wù)，債務(wù)
liability for breach of contract違約責(zé)任
liability of damage損壞賠償責(zé)任
license許可證，執(zhí)照
lift sub（nipple）提升短節(jié)
limitation of liability責(zé)任范圍
liquid nitrogen液氮
lined-cavity charge聚能射孔彈
line the hole下套管
liquid damping液壓減震器
liquid level test液面測試
liquefied petroleum gas液化石油氣
lithic fragment 巖屑
lithologic hydrocarbon reservoir巖性油氣藏
laterolog deep深側(cè)向測井
laterolog shallow淺側(cè)向測井
LDL（litho-density log）巖性密度測井
litho-porosity log巖性孔隙度測井
little slam小滿貫測井法
LSS（long-spaced sonic log）長源距聲波測井
log measured from測井起始深度
log測井，測井儀，測井曲線，錄井
logging cabin測井房，錄井房
logging cable測井電纜
logging gauge測井儀
logging interval測井井段
logging-while-drilling tool隨鉆測井儀
logging interpretation測井解釋
long horizontal traverse well，high-angle deviated well大斜度井
look for bottom探井底
loosen a connection松扣
loss泥漿漏失，井漏
loss of gauge不合標(biāo)準(zhǔn)，不合規(guī)格
loss of well control井失控
lost item（井底）落物
lower sheave地滑輪
low-permeability低滲透率
low productivity well低產(chǎn)井
low-water-cut well低含水井
letter report書面報(bào)告
lump sum contract總包合同
lump sum fee 一攬子費(fèi)用
lump work包干作業(yè)
logging while drilling隨鉆測井
multi-arm caliper多臂井徑儀
magnifier放大器
maiden field未開發(fā)的油氣田
main layer主力油層
main office總公司
main producing horizon主力生產(chǎn)層
maintenance center維修基地
maintenance cost維修費(fèi)用
maintenance crew維修隊(duì)
maintenance gang維修班
maintenance man維修工
maintenance manual維修手冊
maintenance overhaul日常維修
maintenance report維修保養(yǎng)記錄
maintenance supply維修器材
major overhaul 大修
major reservoir主力油層
major terms常用術(shù)語
make a pull起鉆
make a trip起下鉆
male thread公扣
malfunction故障，性能不良
maloperation無操作
male and female joint公母扣接頭
man –made fracture人造裂縫
man-made recovery人工開采
manual of operations操作手冊
magnetic mark磁記號
maximum allowable operating pressure最大允許工作壓力
marginal field邊緣油田
marginal flood邊緣注水
marine drilling platform海上鉆井平臺
marine operation海上作業(yè)
marine petroleum exploitation海上石油開采
master map原始資料圖
master plan總體規(guī)劃
maturing field老油田
maximum deviation最大井斜
maximum design pressure最高設(shè)計(jì)壓力
maximum flow（rate）最大流量
maximum penetration最大穿透深度
maximum wellhead pressure最高井口壓力
mudstone泥巖
measurement depth實(shí)測井深
measured error測量誤差
measured signal被測信號
measured value實(shí)測值
measurement precision測量精度
measurement range 測量范圍
measurement well測試井
MWD（measurements while drilling）隨鉆測井
microlog微電極測井
MSFL（microspherically focused log）微球形聚焦測井
mechanical fault（failure）機(jī)械故障
mechanical performance機(jī)械性能
mechanical work機(jī)械作業(yè)
memorandum備忘錄
microlaterolog微側(cè)向測井
micro-resistivity log微電阻率測井
ministerial standard部頒標(biāo)準(zhǔn)
moving in pulling unit起油管作業(yè)機(jī)運(yùn)進(jìn)井場
moving in rig鉆機(jī)運(yùn)進(jìn)井場
miscalibration標(biāo)定錯(cuò)誤
miscible phase混相
misfire未引爆，未發(fā)射
mishap意外事故，機(jī)械事故
misinterpretation解釋錯(cuò)誤
moving in service rig修井機(jī)運(yùn)進(jìn)井場
moving in tools儀器設(shè)備運(yùn)進(jìn)井場
magnetic mark depth磁記號深度
money order匯票
MOA（memorandum of agreement）協(xié)議備忘錄
mobile drilling rig車載鉆機(jī)
mobile house 活動(dòng)房
mobile operation流動(dòng)作業(yè)
mobilization and demobilization fees動(dòng)復(fù)員費(fèi)
mobilization charge動(dòng)員費(fèi)
model contract標(biāo)準(zhǔn)合同
model machine樣機(jī)
model number型號
moving out equipment設(shè)備運(yùn)出井場
modern perforating practice現(xiàn)代射孔技術(shù)
monitor well監(jiān)測井
monkey活動(dòng)扳手，井架工
monocable，monoconductor，monoconductor cable，monoconductor line單芯電纜
monkey wrench管鉗，活動(dòng)扳手
monophase單相
monthly report月報(bào)
morning shift早班
mothballed plant封存裝置
movable pulley動(dòng)滑輪
maintenance prevention安全設(shè)施
master repair schedule大修日程安排
margin of safety安全系數(shù)
material specifications材料規(guī)格
maximum surface pressure最高井口壓力
minimum shooting interval最小射孔井段
mud cake泥餅
mud damage泥漿對地層的損害
mud filtrate泥漿濾液
mud fluid泥漿
mud logging泥漿錄井
mud lubrication泥漿壓井
mud pit泥漿池
mud socket撈砂筒
mud resistivity log 泥漿電阻率測井
mudstone泥巖
multi-cable，multi conductor ，multicore cable多芯電纜
multimeter萬用電表
multiple completion多層完井
multiple fracturing多次壓裂
multiple runs多次起下作業(yè)
multizone –flooding多層注水
multizone reservoir多層油氣藏
multi-finger caliper多臂井徑儀
XMAC（multipole array acoustic log）數(shù)字交叉偶極子陣列聲波
