No from what I have read they are different, LD seems to be by far more easier achieve than an OBE.

OBE is usually characterized as a floating sensation where the individual appears to be outside looking down at their own body, in many cases it has been reported that they may see a silver cord connecting the two bodies. OBE's claim to be able to travel anywhere they wish, be it spying on the next door neighbor or traveling to another planet. It is said that they can observe but usually cannot interact with others, unless they go to a higher plane of existence(but that's going into the mystical which you don't want to know). I would say that OBE has more in common with remote viewing than a LD.

In an LD however you may have awareness and control in a dream state but the scenery will change, sometimes randomly, you are in control of yourself but that does not necessarily mean that you are control of the dream. For example your in a LD and decide you want to be instantly taken to the great wall of China, it might not happen. In an LD you can interact with object, characters and the world.

So if I could sum it up, there is more interaction for the individual in an LD, while we get more control over where we can go and what we see in a OBE.

The traditional way of achieving an OBE is through stilling the mind of thoughts with meditation, but an individual has to achieve a certain level in their meditation, then it is only possible to induce an OBE. Either that or you can run across a busy street and have a NDE.
The WILD technique is almost the same as normal meditation with regards to relaxing the body but while traditional meditation may still the mind by not putting much importance on thoughts and images, WILD relies on those thoughts and images to enter a dream like state.

If you look up lucid dream on wikipedia, the first image "The secret of the golden flower" actually depicts someone having an OBE, notice that he is in meditation.